US6165571A - Multilayered packaging material, in particular for flexible packagings - Google Patents

Multilayered packaging material, in particular for flexible packagings Download PDF

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Publication number
US6165571A
US6165571A US09/155,893 US15589398A US6165571A US 6165571 A US6165571 A US 6165571A US 15589398 A US15589398 A US 15589398A US 6165571 A US6165571 A US 6165571A
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United States
Prior art keywords
packaging material
material according
barrier layer
gas barrier
thickness
Prior art date
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Expired - Fee Related
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US09/155,893
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English (en)
Inventor
Kirsten Lykke
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DuPont Nutrition Biosciences ApS
Original Assignee
Danisco AS
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Assigned to DANISCO A/S reassignment DANISCO A/S ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: LYKKE, KIRSTEN
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
    • B32B27/306—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising vinyl acetate or vinyl alcohol (co)polymers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/34—Layered products comprising a layer of synthetic resin comprising polyamides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
    • B32B27/365—Layered products comprising a layer of synthetic resin comprising polyesters comprising polycarbonates
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
    • C08J7/04—Coating
    • C08J7/042—Coating with two or more layers, where at least one layer of a composition contains a polymer binder
    • C08J7/0423—Coating with two or more layers, where at least one layer of a composition contains a polymer binder with at least one layer of inorganic material and at least one layer of a composition containing a polymer binder
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
    • C08J7/04—Coating
    • C08J7/043—Improving the adhesiveness of the coatings per se, e.g. forming primers
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
    • C08J7/04—Coating
    • C08J7/048—Forming gas barrier coatings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
    • B29K2995/0037—Other properties
    • B29K2995/0081—Tear strength
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B32B2307/514—Oriented
    • B32B2307/518—Oriented bi-axially
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/724—Permeability to gases, adsorption
    • B32B2307/7242—Non-permeable
    • B32B2307/7244—Oxygen barrier
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2323/00—Polyalkenes
    • B32B2323/04—Polyethylene
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2323/00—Polyalkenes
    • B32B2323/10—Polypropylene
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2367/00—Polyesters, e.g. PET, i.e. polyethylene terephthalate
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2369/00—Polycarbonates
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2377/00—Polyamides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2439/00—Containers; Receptacles
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2367/00—Characterised by the use of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Derivatives of such polymers
    • C08J2367/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2475/00—Characterised by the use of polyureas or polyurethanes; Derivatives of such polymers
    • C08J2475/04—Polyurethanes
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/13—Hollow or container type article [e.g., tube, vase, etc.]
    • Y10T428/1352—Polymer or resin containing [i.e., natural or synthetic]
    • Y10T428/1355—Elemental metal containing [e.g., substrate, foil, film, coating, etc.]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/13—Hollow or container type article [e.g., tube, vase, etc.]
    • Y10T428/1352—Polymer or resin containing [i.e., natural or synthetic]
    • Y10T428/1379—Contains vapor or gas barrier, polymer derived from vinyl chloride or vinylidene chloride, or polymer containing a vinyl alcohol unit
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/13—Hollow or container type article [e.g., tube, vase, etc.]
    • Y10T428/1352—Polymer or resin containing [i.e., natural or synthetic]
    • Y10T428/1379—Contains vapor or gas barrier, polymer derived from vinyl chloride or vinylidene chloride, or polymer containing a vinyl alcohol unit
    • Y10T428/1383—Vapor or gas barrier, polymer derived from vinyl chloride or vinylidene chloride, or polymer containing a vinyl alcohol unit is sandwiched between layers [continuous layer]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/31507—Of polycarbonate
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/31678—Of metal
    • Y10T428/31681—Next to polyester, polyamide or polyimide [e.g., alkyd, glue, or nylon, etc.]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/31678—Of metal
    • Y10T428/31692—Next to addition polymer from unsaturated monomers
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/31725—Of polyamide
    • Y10T428/3175—Next to addition polymer from unsaturated monomer[s]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/31786—Of polyester [e.g., alkyd, etc.]
    • Y10T428/31797—Next to addition polymer from unsaturated monomers
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/31855—Of addition polymer from unsaturated monomers
    • Y10T428/31909—Next to second addition polymer from unsaturated monomers
    • Y10T428/31913—Monoolefin polymer

Definitions

  • the invention relates to a multilayered packaging material, in particular for flexible packagings, and which when seen from the outer face to the inner face comprises:
  • the organic barrier layer may be a film laminated to the other layers or applied to one of the other layers in the laminate in form of a dispersion or a solution or by extrusion coating.
  • the inorganic barrier layer which typically is a metal layer, may also be provided in form of a film or be applied to one of the other layers in the laminate by deposition, ie by metallisation.
  • the organic layer from a dispersion or a solution or by extrusion coating and to form an inorganic layer by deposition.
  • the printing is often made on the inner face of a transparent outer film to protect the print against damage and to obtain a visually more appealing print. If the inorganic barrier layer in form of a metallisation is applied directly to the printed surface, it will discolour the print. It is known to apply a protecting lacquer such as a polyurethane lacquer to the printed surface before the metallisation to prevent discoloration. As a result, a discoloration of the print is avoided in small metallising thicknesses, but in large metallising thicknesses an unwanted discoloration of the print still occur.
  • a protecting lacquer such as a polyurethane lacquer
  • the discoloration typically occurs in metallising thicknesses in excess of about 2 Ohm/square (about 200 Angstrom) corresponding to oxygen barrier properties of about 3 cm 3 /m 2 /24 hours.
  • a separate film is metallised and subsequently laminated to the printed transparent film, thus increasing the costs of manufacture of the packaging material.
  • the object of the invention is to provide a multilayered packaging material of the above type providing improved gas barrier properties without discoloration of the print.
  • the packaging material according to the invention is characterised in that the intermediary layer comprises an organically based gas barrier layer.
  • an organically based gas barrier layer is also able to prevent the metallisation layer from discolouring the print.
  • excellent barrier properties eg an O 2 permeability of ⁇ 0.1 cm 3 /m 2 /24 hours, have been obtained in comparatively small metallising thicknesses of about 3 Ohm/square (about 100 Angstrom) without discoloration of the print.
  • good O 2 barrier properties are also obtained after flexure (Gelbo flexures) when the inorganic barrier layer is applied directly onto the organic barrier layer.
  • the organically based barrier layer may comprise a dispersion or a solution comprising at least one of the materials: ethylene vinyl alcohol (EVOH), polyvinyl alcohol (PVOH) and polyvinylidene chloride (PVDC), preferably EVOH, and preferably in a thickness of between 0.5 and 3 ⁇ m, most preferably of between 0.7 and 1.8 ⁇ m.
  • EVOH ethylene vinyl alcohol
  • PVH polyvinyl alcohol
  • PVDC polyvinylidene chloride
  • the organically based barrier layer per se has an O 2 permeability of less than about 10 cm 3 /m 2 /24 hours, most preferably of less than 5 cm 3 /m 2 /24 hours.
  • the barrier layer can be applied by means of any known coating process such as roller coating, eg smooth roller coating and gravure roller coating, spray coating and dip coating. In practice excellent results have been obtained by smooth roller coating.
  • the outer film may at least be oriented in the machine direction and preferably biaxially oriented.
  • the outer film may comprise at least one material selected among polyolefines, polyamides, polyesters and polycarbonates.
  • the sealing medium layer may comprise a polyolefine, preferably a polyethylene or a polypropylene or copolymers thereof.
  • the shown packaging material When seen from the outer face towards the inner face of a package the shown packaging material comprises an outer, substantially transparent film 1, which may be a single layered film or a laminate formed of several films, and preferably comprising a polyolefine, a polyamide or a polyester.
  • the outer film 1 is reverse printed on its inwardly facing surface.
  • a primer 3 is coated on the print 2 to provide good adhesion to an organically based gas barrier layer 4 applied to the primer either by extrusion coating or in form of a solution or dispersion, which is dried after application.
  • the organically based barrier layer 4 comprises at least one of the barrier materials EVOH, PVOH and PVDC, preferably EVOH.
  • An inner heat sealing layer 7 is adhered to the inorganic barrier layer 5 by means of an adhesive 6.
  • the inner sealing medium layer 7 is typically a polyolefine, preferably a polyethylene or copolymers thereof.
  • a biaxially oriented polyester (PETP) film 1 having a thickness of 12 ⁇ m was printed on its inwardly facing side by means of nitrocellulose-based printing inks.
  • the print 2 was coated with a polyurethane-based primer 3.
  • the primer 3 was coated with an EVOH coating in form of an alcohol/water solution of an EVOH granulate.
  • An amount of about 1.2 g/m 2 (dry weight) was applied corresponding to a thickness of about 1 ⁇ m (dried).
  • the EVOH coating per se had an O 2 permeability of about 3 cm 3 /m 2 /24 hours.
  • the EVOH coating was dried in a drying tunnel at a temperature of between 100 and 130° C.
  • the dried EVOH coating was metallised by vacuum deposition of aluminum.
  • the metallising thickness was 3 Ohm/square (about 100 Angstrom).
  • a PE film was laminated to the metallisation layer 5 by means of a two-component polyurethane adhesive 6.
  • the prepared laminate showed no signs of discoloration of the print.
  • the laminate had an O 2 permeability ⁇ 0.1 cm 3 /m 2 /24 hours.
  • a Gelbo flexure test showed that the O 2 barrier remained unchanged after twenty Gelbo flexures performed according to MIL-B-131G, FED-STD-101, method No 2017.
  • a laminate was prepared as in Example 1, the PETP film, however, being replaced by a co-extruded, oriented polypropylene film of a thickness of 30 ⁇ m and polyvinylbutyral (PVB) based printing inks being used.
  • the laminate had an O 2 permeability of ⁇ 0.1 cm 3 /m 2 /24 hours. After twenty Gelbo flexures the laminate had an O 2 permeability of >0.5 cm 3 /m 2 /24 hours.
  • a laminate was prepared as in Example 1, the PETP film, however, being replaced by a 15 ⁇ m thick, oriented polyamide film and polyvinylbutyral (PVB) based printing inks being used.
  • PVB polyvinylbutyral
  • the laminate had an O 2 permeability of ⁇ 0.1 cm 3 /m 2 /24 hours both before and after twenty Gelbo flexures.
  • a biaxially oriented polyester (PETP) film 1 having a thickness of 12 ⁇ m was printed on its inwardly facing side by means of nitrocellulose-based printing inks.
  • the print 2 was coated with a polyurethane-based primer 3.
  • the primer 3 was coated with a PVOH coating in form of an aqueous PVOH solution. An amount of about 1.4 g/m 2 (dry weight) was applied corresponding to a thickness of about 1.2 ⁇ m (dried).
  • the PVOH coating was dried and the dried PVOH coating was metallised by vacuum deposition of aluminum. The metallising thickness was 3 Ohm/square (about 100 Angstrom).
  • a PE film was laminated to the metallisation layer 5 by means of a two-component polyurethane adhesive 6.
  • the prepared laminate showed no signs of discoloration of the print.
  • the laminate had an O 2 permeability of ⁇ 0.1 cm 3 /m 2 /24 hours both before and after twenty Gelbo flexures.
  • the barrier properties were as stated above both before and after twenty Gelbo flexures.

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  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Laminated Bodies (AREA)
  • Wrappers (AREA)
  • Packages (AREA)
US09/155,893 1996-04-12 1997-04-08 Multilayered packaging material, in particular for flexible packagings Expired - Fee Related US6165571A (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
DK41996 1996-04-12
DK199600948A DK172837B1 (da) 1996-04-12 1996-09-04 Flerlags emballagemateriale, især til fleksible emballager
DK0419/96 1996-09-04
DK0948/96 1996-09-04
PCT/DK1997/000149 WO1997038853A1 (en) 1996-04-12 1997-04-08 A multilayered packaging material, in particular for flexible packagings

Publications (1)

Publication Number Publication Date
US6165571A true US6165571A (en) 2000-12-26

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US09/155,893 Expired - Fee Related US6165571A (en) 1996-04-12 1997-04-08 Multilayered packaging material, in particular for flexible packagings

Country Status (17)

Country Link
US (1) US6165571A (de)
EP (1) EP0951390B1 (de)
JP (1) JP2000508261A (de)
AT (1) ATE260759T1 (de)
AU (1) AU711380B2 (de)
BR (1) BR9708634A (de)
CA (1) CA2250028C (de)
CZ (1) CZ314098A3 (de)
DE (1) DE69727969T2 (de)
DK (2) DK172837B1 (de)
ES (1) ES2216140T3 (de)
HU (1) HU224171B1 (de)
NO (1) NO313956B1 (de)
NZ (1) NZ332058A (de)
PL (1) PL187341B1 (de)
PT (1) PT951390E (de)
WO (1) WO1997038853A1 (de)

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6555242B2 (en) 2000-02-04 2003-04-29 Wolff Walsrode Ag Longitudinally stretched, vacuum vapor coated packaging films
US20030170428A1 (en) * 2002-03-07 2003-09-11 Willis Rickie A. Overwrapping film and method of use
US20040089675A1 (en) * 2002-09-10 2004-05-13 Swope James E. Dispensing apparatus
US20040131868A1 (en) * 2002-10-23 2004-07-08 Toray Plastics (America), Inc. High barrier flexible packaging structure
US6783816B2 (en) 2001-04-12 2004-08-31 Avery Dennison Corporation Metallized inkjet substrates and methods of making the same
WO2004089623A1 (en) * 2003-04-14 2004-10-21 H.J. Heinz Frozen & Chilled Foods Limited Packaging for food product
US20050252952A1 (en) * 2004-05-12 2005-11-17 Sonoco Development, Inc. High-barrier liner for beaded composite can
US20050276942A1 (en) * 2004-06-15 2005-12-15 Jitendra Somani Packaging for freezer pops containing at least one active agent
US20060008601A1 (en) * 2004-06-25 2006-01-12 Zeik Douglas B Flexible laminate having an integrated pressure release valve
US20130161349A1 (en) * 2010-08-04 2013-06-27 Huhtamaki Flexible Packaging Germany Gmbh & Co. Kg Bag-on-valve system and film laminate for aggressive filling materials
CN104066579A (zh) * 2011-06-14 2014-09-24 爱索尔包装有限公司 部分不透明-部分透明的层压体及其方法
US20140290185A1 (en) * 2011-10-25 2014-10-02 2 Gamma S.R.L. Multi-layer barrier film and use thereof
US20150298861A1 (en) * 2012-11-01 2015-10-22 Jindal Films Americas Llc Coated metallized oriented polypropylene films
US20150343746A1 (en) * 2012-12-20 2015-12-03 Dow Global Technologies Llc Multilayer films of fdca-based polyesters
US20190047751A1 (en) * 2015-05-20 2019-02-14 Sonoco Development, Inc. Flexible laminate structure with integrated one-way valve

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2764895B1 (fr) * 1997-06-19 2000-02-11 Toray Plastics Europ Sa Films barriere composites metallises
AU5886899A (en) * 1998-09-22 2000-04-10 Flex Pack International (Holdings) Limited A process for the production of a laminated film
DE10001696B4 (de) * 2000-01-18 2004-11-11 Henkel Kgaa Verfahren zur Herstellung einer bedruckten Folienbahn zur Bildung einer Verpackung für tablettenförmige Gegenstände sowie Verpackung für solche Gegenstände
EP1767346A1 (de) * 2005-09-27 2007-03-28 Alcan Technology & Management Ltd. Bedrucktes thermoformbares Laminat mit erhöhter Fälschungssicherheit
DK200800505A (da) * 2007-09-03 2009-03-04 Danapak Flexibles As Fremgangsmåde til fremstilling af en emballagefolie, middel hertil samt anvendelse heraf
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IN2014MU00164A (de) 2014-01-17 2015-04-24 Kamakshi Flexiprints Pvt Ltd
BR112018003464A2 (pt) * 2015-10-28 2018-09-25 Hp Indigo Bv material de embalagem flexível
DE102021103879A1 (de) 2021-02-18 2022-08-18 Huhtamaki Flexible Packaging Germany Gmbh & Co. Kg Recyclingfähige Verpackungslagenanordnung mit Sauerstoff- und Wasserdampfbarriere, umfassend eine Trägerlage aus Papier
DE102021114174A1 (de) 2021-06-01 2022-12-01 Mondi Ag Folienverbund, Folienverpackung sowie Verfahren zur Herstellung eines Folienverbundes

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3949114A (en) * 1973-05-10 1976-04-06 W. R. Grace & Co. Packaging of foodstuffs
EP0096581A1 (de) * 1982-06-07 1983-12-21 Idemitsu Petrochemical Co. Ltd. Geschichtete Materialien
US4457977A (en) * 1981-09-30 1984-07-03 The Dow Chemical Company Metallized plastic articles
EP0281893A2 (de) * 1987-03-10 1988-09-14 Hoechst Aktiengesellschaft Verbundfolie zur Herstellung von quaderförmigen evakuierten Packungen
EP0340910A2 (de) * 1988-04-08 1989-11-08 Bowater Packaging Limited Metallisierter Sperrfilm
WO1992001558A1 (en) * 1990-07-26 1992-02-06 Elopak Systems Ag Improvements in or relating to laminates and packaging materials
US5153074A (en) * 1991-11-05 1992-10-06 Mobil Oil Corporation Metallized film combination
WO1994023941A1 (en) * 1993-04-21 1994-10-27 Mobil Oil Corporation Multilayer packaging films
WO1995034424A1 (en) * 1994-06-10 1995-12-21 Mobil Oil Corporation Film composition

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3949114A (en) * 1973-05-10 1976-04-06 W. R. Grace & Co. Packaging of foodstuffs
US4457977A (en) * 1981-09-30 1984-07-03 The Dow Chemical Company Metallized plastic articles
EP0096581A1 (de) * 1982-06-07 1983-12-21 Idemitsu Petrochemical Co. Ltd. Geschichtete Materialien
EP0281893A2 (de) * 1987-03-10 1988-09-14 Hoechst Aktiengesellschaft Verbundfolie zur Herstellung von quaderförmigen evakuierten Packungen
EP0340910A2 (de) * 1988-04-08 1989-11-08 Bowater Packaging Limited Metallisierter Sperrfilm
WO1992001558A1 (en) * 1990-07-26 1992-02-06 Elopak Systems Ag Improvements in or relating to laminates and packaging materials
US5153074A (en) * 1991-11-05 1992-10-06 Mobil Oil Corporation Metallized film combination
WO1994023941A1 (en) * 1993-04-21 1994-10-27 Mobil Oil Corporation Multilayer packaging films
WO1995034424A1 (en) * 1994-06-10 1995-12-21 Mobil Oil Corporation Film composition

Cited By (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6555242B2 (en) 2000-02-04 2003-04-29 Wolff Walsrode Ag Longitudinally stretched, vacuum vapor coated packaging films
US6783816B2 (en) 2001-04-12 2004-08-31 Avery Dennison Corporation Metallized inkjet substrates and methods of making the same
US20030170428A1 (en) * 2002-03-07 2003-09-11 Willis Rickie A. Overwrapping film and method of use
WO2003076181A2 (en) * 2002-03-07 2003-09-18 Vennetti, Ralph, S. Overwrapping film and manufacturing method
WO2003076181A3 (en) * 2002-03-07 2004-02-05 Vennetti Ralph S Overwrapping film and manufacturing method
US20040089675A1 (en) * 2002-09-10 2004-05-13 Swope James E. Dispensing apparatus
US7252878B2 (en) * 2002-10-23 2007-08-07 Toray Plastics (America), Inc. High barrier flexible packaging structure
US20040131868A1 (en) * 2002-10-23 2004-07-08 Toray Plastics (America), Inc. High barrier flexible packaging structure
WO2004089623A1 (en) * 2003-04-14 2004-10-21 H.J. Heinz Frozen & Chilled Foods Limited Packaging for food product
US20050252952A1 (en) * 2004-05-12 2005-11-17 Sonoco Development, Inc. High-barrier liner for beaded composite can
US20050276942A1 (en) * 2004-06-15 2005-12-15 Jitendra Somani Packaging for freezer pops containing at least one active agent
US7527840B2 (en) 2004-06-25 2009-05-05 The Folgers Coffee Company Flexible laminate having an integrated pressure release valve
US20060083877A1 (en) * 2004-06-25 2006-04-20 Zeik Douglas B Flexible laminate having an integrated pressure release valve
WO2006012282A1 (en) 2004-06-25 2006-02-02 The Procter & Gamble Company Flexible laminate having an integrated pressure release valve
US20060008601A1 (en) * 2004-06-25 2006-01-12 Zeik Douglas B Flexible laminate having an integrated pressure release valve
US20090186174A1 (en) * 2004-06-25 2009-07-23 The J.M. Smucker Company Flexible laminate having an integrated pressure release valve
US7892390B2 (en) 2004-06-25 2011-02-22 The Folger Coffee Company Flexible laminate having an integrated pressure release valve
US20130161349A1 (en) * 2010-08-04 2013-06-27 Huhtamaki Flexible Packaging Germany Gmbh & Co. Kg Bag-on-valve system and film laminate for aggressive filling materials
WO2013072918A3 (en) * 2011-06-14 2015-06-18 Essel Propack Limited Partially opaque-partially clear laminates and methods thereof.
CN104066579A (zh) * 2011-06-14 2014-09-24 爱索尔包装有限公司 部分不透明-部分透明的层压体及其方法
EP2720866A4 (de) * 2011-06-14 2016-04-27 Essel Propack Ltd Teilweise opake und teilweise klare laminate und verfahren dafür
CN104066579B (zh) * 2011-06-14 2016-06-22 爱索尔包装有限公司 部分不透明-部分透明的层压体及其方法
US9486987B2 (en) 2011-06-14 2016-11-08 Essel Propack Ltd. Partially opaque-partially clear laminates and methods thereof
US20140290185A1 (en) * 2011-10-25 2014-10-02 2 Gamma S.R.L. Multi-layer barrier film and use thereof
US20150298861A1 (en) * 2012-11-01 2015-10-22 Jindal Films Americas Llc Coated metallized oriented polypropylene films
US20150343746A1 (en) * 2012-12-20 2015-12-03 Dow Global Technologies Llc Multilayer films of fdca-based polyesters
US9969150B2 (en) * 2012-12-20 2018-05-15 Dow Global Technologies Llc Multilayer films of FDCA-based polyesters
US20190047751A1 (en) * 2015-05-20 2019-02-14 Sonoco Development, Inc. Flexible laminate structure with integrated one-way valve
US10689160B2 (en) * 2015-05-20 2020-06-23 Sonoco Development, Inc. Flexible laminate structure with integrated one-way valve

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DK94896A (da) 1997-10-13
NZ332058A (en) 1999-07-29
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HU224171B1 (hu) 2005-06-28
HUP9901793A2 (hu) 1999-10-28
CZ314098A3 (cs) 1999-04-14
HUP9901793A3 (en) 2001-04-28
DE69727969D1 (de) 2004-04-08
EP0951390B1 (de) 2004-03-03
DK172837B1 (da) 1999-08-09
AU2380497A (en) 1997-11-07
ES2216140T3 (es) 2004-10-16
CA2250028C (en) 2005-04-05
AU711380B2 (en) 1999-10-14
WO1997038853A1 (en) 1997-10-23
DE69727969T2 (de) 2004-07-22
EP0951390A1 (de) 1999-10-27
CA2250028A1 (en) 1997-10-23
NO313956B1 (no) 2003-01-06
PL329237A1 (en) 1999-03-15
ATE260759T1 (de) 2004-03-15
NO984719D0 (no) 1998-10-09
BR9708634A (pt) 1999-04-13
DK0951390T3 (da) 2004-04-26
NO984719L (no) 1998-10-09

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